I have been trying to run the latest version of Sound Studio 2.1.1 on a dual G5, OS X 10.3.4 but while the program runs, the playback button is greyed out and cannot be used. The spacebar, which will run the play button, does not work either. I have emailed this bug to the Felttip web site, alerting the programmers, but so far no response. It's been over 6 months. Lucius is usually very responsive. Has anyone else had this problem...and perhaps suggest a work around? Thanks.